Hugh Hendry (the anti-Jim O'Neill) sees parallels between 1920s Japan and today's China, which he says could precipitate a greater crisis elsewhere in the world, and he's putting his money where his mouth is - buying options on 20 companies that will profit from a "dramatic collapse" of China's growth. (ETFs long: GXC, FXI, PGJ; and short: FXP, CZI)